RT info:eu-repo/semantics/article T1 unexpected toxicity of green tea polyphenols in combination with the sambucus ril ebulin A1 Rojo, M. Ángeles A1 Garrosa, Manuel A1 Jiménez, Pilar A1 Girbés, Tomás A1 Garcia-Recio, Verónica A1 Cordoba-Diaz, Manuel A1 Cordoba-Diaz, Damián K1 green tea polyphenols K1 Sambucus ebulus K1 ebulin f K1 RIP K1 ribosome-inactivating protein K1 ricin AB The safety of concentrated food complements intake is a major health concern. It has been well established that green tea polyphenols (GTPs) consumption promotes healthy effects. However, the ingestion of large amounts of GTPs is a matter of controversy due to reported adverse effects. We underwent a preliminary exploration of the effects of the oral administration of a standardized concentrated GTPs preparation on mice which suffered from reversible intestinal derangement promoted by sublethal amounts of the antiribosomal lectin ebulin f from dwarf elder (Sambucus ebulus L.). Neither independent oral administration of 30 mg/kg body weight Polyphenon 60 nor intraperitoneal administration of 2.5 mg/kg body weight ebulin f triggered lethal toxicity. In contrast, the simultaneous administration of these same doses of both Polyphenon 60 and ebulin f triggered an important and unexpected synergistic toxic action featured by the biphasic reduction of weight, which continued after eight days, reaching a reduction of 40%. Lethality appeared 2 days after the onset of the combined treatment and reached more than 50% after 10 days. PB MDPI SN 2072-6651 YR 2020 FD 2020 LK https://uvadoc.uva.es/handle/10324/64333 UL https://uvadoc.uva.es/handle/10324/64333 LA eng NO Toxins 2020,12,542-553 NO Producción Científica DS UVaDOC RD 18-nov-2024